iBio, Inc. - Common Stock, par value $0.001 per share (IBIO) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2023 to Q4 2025

Type / Class
Equity / Common Stock, par value $0.001 per share
Symbol
IBIO on Nasdaq
Shares outstanding
30,719,795
Price per share
$2.15
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
16,339,407
Total reported value
$31,555,155
% of total 13F portfolios
0%
Share change
+12,769,419
Value change
+$26,570,216
Number of holders
48
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of iBio, Inc. - Common Stock, par value $0.001 per share (IBIO) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Point72 Asset Management, L.P. 9.9% $9,716,600 14,289,118 Point72 Asset Management, L.P. 22 Aug 2025
Vestal Point Capital, LP 9.9% $3,518,752 4,275,000 Vestal Point Capital, LP 30 Sep 2025
Affinity Asset Advisors, LLC 10% 0% $4,627,194 +$424,252 2,401,616 +10% Affinity Asset Advisors, LLC 22 Jan 2026
Cormorant Asset Management, LP 10% $1,850,337 2,248,010 Cormorant Asset Management, LP 30 Sep 2025
EcoR1 Capital, LLC 9.9% $2,673,600 2,228,000 EcoR1 Capital, LLC 10 Dec 2025
SILVERARC CAPITAL MANAGEMENT, LLC 10% $1,795,528 2,181,422 SilverArc Capital Management, LLC 30 Sep 2025
Adage Capital Management, L.P. 10% $1,795,528 2,181,422 Adage Capital Management, L.P. 30 Sep 2025
Frazier Life Sciences Public Fund, L.P. 8.7% $2,344,160 1,953,467 Frazier Life Sciences Public Fund, L.P. 09 Dec 2025
Logos Global Management LP 4.6% -48% $3,810,000 -$1,270,000 1,500,000 -25% Logos Global Management LP 31 Dec 2025
ADAR1 Capital Management, LLC 4.4% -55% $3,433,244 -$1,123,655 1,351,671 -25% ADAR1 Capital Management, LLC 31 Dec 2025
INTEGRATED CORE STRATEGIES (US) LLC 5.2% $2,381,068 1,235,827 Millennium Management LLC 15 Jan 2026
Ikarian Capital, LLC 5% $947,430 1,151,051 Ikarian Capital, LLC 30 Sep 2025
Crutcher Patrick J 3.1% -56% $635,283 +$112,748 847,044 +22% Patrick J. Crutcher 30 Jun 2025
Opaleye Management Inc. 7.6% $787,500 750,000 Opaleye Management, Inc. 31 Dec 2024

As of 31 Dec 2025, 48 institutional investors reported holding 16,339,407 shares of iBio, Inc. - Common Stock, par value $0.001 per share (IBIO). This represents 53% of the company’s total 30,719,795 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of iBio, Inc. - Common Stock, par value $0.001 per share (IBIO) together control 52% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
EcoR1 Capital, LLC 7.3% 2,228,000 0.2% $4,300,040
Affinity Asset Advisors, LLC 6.7% 2,057,200 0.29% $3,970,396
Logos Global Management LP 6.5% 2,000,000 0.26% $3,860,000
Frazier Life Sciences Management, L.P. 6.4% 1,953,467 0.1% $3,770,191
Balyasny Asset Management L.P. 3.6% 1,096,179 +10440% 0% $2,115,625
Ikarian Capital, LLC 3.1% 957,062 +55% 0.24% $1,847,130
VANGUARD GROUP INC 2.9% 883,149 +222% 0% $1,704,478
Sio Capital Management, LLC 2.4% 740,000 0.24% $1,428,200
AMERIPRISE FINANCIAL INC 1.9% 584,368 +21% 0% $1,127,831
TWO SIGMA INVESTMENTS, LP 1.5% 456,333 0% $880,723
ADAR1 Capital Management, LLC 1.3% 405,531 +1402% 0.06% $782,675
RENAISSANCE TECHNOLOGIES LLC 1.2% 353,339 0% $681,944
Monashee Investment Management LLC 0.89% 274,862 0.3% $530,484
BOOTHBAY FUND MANAGEMENT, LLC 0.83% 254,412 +44% 0.01% $491,015
Hudson Bay Capital Management LP 0.79% 242,076 0% $467,207
NOESIS CAPITAL MANGEMENT CORP 0.73% 224,200 0.06% $432,706
GEODE CAPITAL MANAGEMENT, LLC 0.72% 222,610 +47% 0% $429,637
Walleye Capital LLC 0.65% 198,375 0% $382,864
Jefferies Financial Group Inc. 0.52% 160,000 0% $308,800
UBS Group AG 0.41% 126,556 +12655500% 0% $244,253
MARSHALL WACE, LLP 0.39% 121,286 0% $234,082
BANK OF AMERICA CORP /DE/ 0.38% 115,793 +79757% 0% $223,481
TWO SIGMA ADVISERS, LP 0.35% 108,400 0% $209,212
SILVERARC CAPITAL MANAGEMENT, LLC 0.35% 106,000 0.03% $204,580
JANE STREET GROUP, LLC 0.34% 105,700 0% $204,001

Institutional Holders of iBio, Inc. - Common Stock, par value $0.001 per share (IBIO) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 16,339,407 $31,555,155 +$26,570,216 $1.93 48
2025 Q3 3,569,988 $2,955,323 +$299,071 $0.83 32
2025 Q2 3,204,109 $2,444,153 -$225,284 $0.76 30
2025 Q1 2,587,118 $10,399,905 +$550,651 $4.02 33
2024 Q4 2,612,402 $6,400,381 +$11,561 $2.45 29
2024 Q3 2,607,512 $5,788,674 +$356,141 $2.22 31
2024 Q2 2,451,117 $5,171,853 -$1,674,085 $2.11 26
2024 Q1 2,885,311 $11,469,753 +$10,566,308 $4.06 26
2023 Q4 251,385 $344,588 +$344,585 $1.37 20
2023 Q3 0 $0 -$5 $2.15 0
2023 Q2 8 $5 $0.62 1
2023 Q1 8 $17 +$17 $2.12 1